Appeal No. 96-2614
Application 08/098,740
have reasonably suggested using biased transistors as
resistors.
While not necessary, we include the following discussion
to indicate several points with which we disagree with the
appellant. It may be useful if and when the examiner has
found sufficient factual basis to support his finding that it
was notoriously well known to use transistors as resistors.
First, a transistor can be fixedly biased and thus a “biasing
circuit” as recited in claim 1 can well be a power supply.
Secondly, assuming that it would have been obvious to one with
ordinary skill in the art to use a transistor as a resistor,
it follows that any one or more resistor in a circuit may be
implemented by a transistor, at the discretion of one with
ordinary skill in the art. There is no reason to limit that
discretion to an all or nothing choice. The motivation is
simply the recognition that a
resistor may be implemented by a properly biased transistor
and need not have anything to do with the appellant’s focus on
capacitance multiplier circuits.
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